Wood S
J Acoust Soc Am. 1986 Aug;80(2):391-401. doi: 10.1121/1.394090.
The acoustical consequences of articulatory maneuvers of [y] are studied in model experiments in order to obtain insights into articulator programming and speech motor control by elucidating the role of each component maneuver of a speech segment in setting up vocal tract resonance conditions for the spectral features of the speech wave. The maneuvers of [y] are found to provide a maximum and stable plain-flat spectral contrast with [i]. The results can be generalized to different vocal tract sizes. Tongue retraction and larynx depression are rejected as compensations to counteract labial undershoot. Larynx depression is complementary to lip rounding and restores spectral sensitivity to palatal and pharyngeal tongue movements otherwise disturbed by the labial activity. Spectral sensitivity then remains the same for [i] and [y], and there is no need for separate compensation programs for each of these phones.
为了通过阐明语音片段的每个组成动作在为语音波的频谱特征建立声道共振条件方面的作用，从而深入了解发音器官编程和言语运动控制，在模型实验中研究了[y]的发音动作的声学后果。发现[y]的动作与[i]相比能提供最大且稳定的平-平频谱对比。结果可以推广到不同的声道尺寸。舌后缩和喉部下移被排除作为抵消唇部收缩不足的补偿方式。喉部下移与唇圆化互补，并恢复了对腭部和咽部舌运动的频谱敏感性，否则这些运动会受到唇部活动的干扰。对于[i]和[y]，频谱敏感性保持相同，因此无需为这些音素中的每一个单独设置补偿程序。
